CVE-2021-21340: medium-severity vulnerability in TYPO3.CMS
Cross-Site Scripting in Content Preview
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.4epss 0.9%
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 10.4.14, 11.1.1 it has been discovered that database fields used as _descriptionColumn_ are vulnerable to cross-site scripting when their content gets previewed. A valid backend user account is needed to exploit this vulnerability. This is fixed in versions 10.4.14, 11.1.1 .
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Affected products
TYPO3 · TYPO3.CMSRelated CVEs — TYPO3.CMS
In the same product, most dangerous first.
CVE-2021-21359MEDIUMDenial of Service in Page Error HandlingEPSS 1.7%CVE-2021-21355HIGHUnrestricted File Upload in Form FrameworkEPSS 1.6%CVE-2021-21357HIGHBroken Access Control in Form FrameworkEPSS 1.6%CVE-2021-21338MEDIUMOpen Redirection in Login HandlingEPSS 1.1%CVE-2021-21339MEDIUMCleartext storage of session identifierEPSS 0.9%CVE-2021-21370MEDIUMCross-Site Scripting in Content Preview (CType menu)EPSS 0.9%